Home / 39,058.40-53,900.33-21,152.99

Finding the Fourth Proportional to 39,058.40, 53,900.33 and 21,152.99

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Solution

The fourth proportional to 39,058.40, 53,900.33 and 21,152.99 is: 29,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,058.40 : 53,900.33 = 21,152.99 : x
  2. Step 2: Convert to fraction form
    39,058.40/53,900.33 = 21,152.99/x
  3. Step 3: Cross multiply
    39,058.40x = 53,900.33 × 21,152.99
  4. Step 4: Simplify right side
    39,058.40x = 1,140,153,170.47
  5. Step 5: Solve for x
    x = 1,140,153,170.47/39,058.40
  6. Step 6: Final answer
    x = 29,190.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.